Home / 1,183.40-1,776.36-1,047.32

Finding the Fourth Proportional to 1,183.40, 1,776.36 and 1,047.32

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Solution

The fourth proportional to 1,183.40, 1,776.36 and 1,047.32 is: 1,572.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.40 : 1,776.36 = 1,047.32 : x
  2. Step 2: Convert to fraction form
    1,183.40/1,776.36 = 1,047.32/x
  3. Step 3: Cross multiply
    1,183.40x = 1,776.36 × 1,047.32
  4. Step 4: Simplify right side
    1,183.40x = 1,860,417.36
  5. Step 5: Solve for x
    x = 1,860,417.36/1,183.40
  6. Step 6: Final answer
    x = 1,572.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.